Aluminum micro-particles combustion ignited by underwater electrical wire explosion

被引:23
作者
Efimov, S. [1 ]
Gilburd, L. [1 ]
Fedotov-Gefen, A. [1 ]
Gurovich, V. Tz [1 ]
Felsteiner, J. [1 ]
Krasik, Ya E. [1 ]
机构
[1] Technion Israel Inst Technol, Dept Phys, IL-32000 Haifa, Israel
关键词
Electrical wire explosion; Aluminum combustion; Water; Aluminum powder; Shock waves;
D O I
10.1007/s00193-012-0361-3
中图分类号
O3 [力学];
学科分类号
08 ; 0801 ;
摘要
The results of experiments on the ignition of aluminum micro-particles' combustion by underwater electrical wire explosion (UEWE) are reported. A compact sub-microsecond timescale duration high-current (240 kA) pulsed power generator was used to explode copper and aluminum wires electrically in different aluminum powder suspensions. The combustion of the aluminum micro-particles was characterized by a target time-of-flight method and optical measurements of the exploding wire and aluminum suspension light emission. It was shown that, by using a proper solution and type of aluminum powder, this method allows aluminum micro-particle combustion in the estimated range of 32-79 % efficiency.
引用
收藏
页码:207 / 214
页数:8
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